//
// Created by ZhuanZ（无密码） on 2025/2/5.
//
#include "stdio.h"
char Upper(char ch);
int main()
{
    char ch = 'a';
    printf("输入一个小写字母:");
    scanf("%c",&ch);
    char result = Upper(ch);
    printf("其大写字母为：%c",result);
    return 0;
}
char Upper(char ch)
{
    return ch - 32;
}